The First World War ended 100 years ago today. Scholars have long debated its causes and effects . Yet surprisingly few have explored why the war lasted four long and bloody years.

A woman cycles past an installation with thousands of poppy flowers at Koenigsplatz in Munich on Nov. 3 as Europe prepares to mark the centenary of the ending of World War I. (Reuters) Analysis by ...

The use of heavy munition in an area known to be filled with unprotected civilians, including children, women, and the ...

A replica World War 1 Mk IV is displayed in Trafalgar Square in London to mark the 100th anniversary of the first use of the tank in battle during the Battle of the Somme, on Sept. 15, 2016.

2. “Never think that war, no matter how necessary, nor how justified, is not a crime.” — Ernest Hemingway, 1946. Hemingway was 18 years old when he volunteered to be an ambulance driver for WWI.

However, there are also games that focus on post-war struggles, ... The death and destruction of the First World War combined ...

The immediate post-World War I era was a period in U.S. history marked by violent labor strikes, mass anti-immigration rallies, race riots, ... known as the first "Red Scare." ...

NPR's Scott Simon talks with author Adam Ehrlich Sachs about his new novel "Gretel and the Great War." The book follows a young girl in Vienna at the end of World War I.

Life in post-First World War Britain revealed as 1921 census is released Historian David Olusoga said the survey captured ‘one of the most dramatic and dangerous moments in history’.

Before Nov. 11, the war had killed 14 million people, including 9 million soldiers, sailors and airmen from 28 countries. Germany came close to a quick, early victory before the war settled into he… ...

These are lessons from World War I we are still learning. We must not forget the challenges facing service personnel exposed to trauma, both today and a century ago. Psychiatry ...